Ethyl butyrate

Ethyl butyrate
Names
IUPAC name
Ethyl butanoate
Other names
Ethyl n-butanoate, Ethyl n-butyrate, Butanoic acid ethyl ester, Butyric acid ethyl ester, Butyric ether, UN 1180
Identifiers
105-54-4 YesY
ChEMBL ChEMBL44800 YesY
ChemSpider 7475 YesY
EC Number 203-306-4
Jmol 3D model Interactive image
PubChem 7762
UNII UFD2LZ005D YesY
Properties[1]
C6H12O2
Molar mass 116.16 g·mol−1
Appearance Colorless liquid with fruity odor (typically pineapple)
Density 0.879 g/cm3
Melting point −93 °C (−135 °F; 180 K)
Boiling point 120 to 121 °C (248 to 250 °F; 393 to 394 K)
Soluble in 150 parts
Vapor pressure 1510 Pa (11.3 mmHg)
Hazards
Main hazards Irritant (Xi)
Safety data sheet See: data page
R-phrases R10 R36/37/38
S-phrases S16 S26 S36
NFPA 704
Flammability code 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g., diesel fuel Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
2
1
0
Flash point 26 °C; 78 °F; 299 K c.c.
463 °C (865 °F; 736 K)
Lethal dose or concentration (LD, LC):
13050 mg/kg (oral, rat)[1]
Supplementary data page
Refractive index (n),
Dielectric constant (εr), etc.
Thermodynamic
data
 Phase behaviour
solid–liquid–gas
UV, IR, NMR, MS
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Infobox references

Ethyl butyrate, also known as ethyl butanoate, or butyric ether, is an ester with the chemical formula CH3CH2CH2COOCH2CH3. It is soluble in propylene glycol, paraffin oil, and kerosene. It has a fruity odor, similar to pineapple.[1] It occurs naturally in many fruits.[2]

Uses

It is commonly used as artificial flavoring resembling orange juice[3] or pineapple in alcoholic beverages (e.g. martinis, daiquiris etc.), as a solvent in perfumery products, and as a plasticizer for cellulose. In addition, ethyl butyrate is often also added to orange juice, as most associate its odor with that of fresh orange juice.

Ethyl butyrate is one of the most common chemicals used in flavors and fragrances. It can be used in a variety of flavors: orange (most common), cherry, pineapple, mango, guava, bubblegum, peach, apricot, fig, and plum. In industrial use, it is also one of the cheapest chemicals, which only adds to its popularity.

Production

It can be synthesized by reacting ethanol and butyric acid. This is a condensation reaction, meaning water is produced in the reaction as a byproduct. Ethyl butyrate from natural sources can be distinguished from synthetic ethyl butyrate by Stable Isotope Ratio Analysis (SIRA).[4]

See also

References

  1. 1 2 3 Merck Index, 12th Edition, 3822
  2. ↑ Schieberle, H.-D. Belitz, W. Grosch, P. (2009). Food chemistry (4th rev. and extended ed.). Berlin: Springer. ISBN 9783540699330.
  3. ↑ Andrea Walker (12 May 2009). "Ask an Academic: Orange Juice". The New Yorker.
  4. ↑ Ashurst, P.R.; Dennis, M.J. (1998). Analytical methods of food authentication (1st ed.). London: Blackie Academic & Professional. ISBN 9780751404265. Retrieved 27 January 2016.

External links

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